Inking roller mounting



Jan. 1l, 1955 c. A. HARLEss INKING ROLLER -rvloumfmc;

5 Sheets-Sheet l Filed Oct. l2, 1950 5 f L 2 5 L .i mv

Jan. 11, 1955 C, A, HARLESS 2,699,116

` INKING ROLLER MOUNTING A Filed OCT'. 12, 1950 I5 Sheets-Sheet 2 INVENTOR. 6MP/.5 A A//QS Jan. 11, 1955 c. A. HARLESS 2,699,116

INKING ROLLER MOUNTING Filed Oct. l2, 1950 I5 Sheets-Sheet 3 JNVENTOR. A44/@,455 A, HAP/,555

United States Patent O INKING ROLLER MGUNTING Charles A. Harless, Riverside, Conn., assigner to R. Hoe & Co., Inc., New York, N. Y., a corporation of New York Application October 12, 1950, Serial No. 189,699

7 Claims. (Cl. 101348) This invention relates to improvements in inking roller mountings for printing machines.

It is an object of the invention to provide an inkrng roller mounting adapted for use with inking rollers of different diameters and cooperating with ink drums of various diameters.

Another object is to eliminate the need for extreme precision in attaching the mountings to the press frames while still providing means for precise adjustment of the inking roller position.

Another object is to provide a simple and rapid arrangement for adjusting the roller position and locking the mounting in adjusted position.

With the foregoing obiects, as well as others which will appear, in mind, the invention consists in the combinations and arrangements of parts, and details of construction, which will now first be fully described with reference to the accompanying drawing and then be more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a schematic fragmentary elevation looking in the direction of the arrows 1 1 of Figure 2 at the inside of a rear member of the frame of a machine embodying the invention in a preferred form and showing the position of the inking rollers;

Figure 2 is a section on the line 2 2 of Figure 3 showing one of the inking roller mountings of Figure 1 on an enlarged scale;

Figure 3 is an enlarged elevation of one of the inking roller mountings of Figure l;

Figure 4 is a bottom view of the mounting of Figure 3, with parts broken away to show the structure;

Figure 5 is a back elevation of the mounting of Figure 3 and is partly in section on the line 5-5 of Figure 4;

Figure 6 is a subassembly shown as removed from the mounting of Figure 5;

Figure 7 is a View partly in elevation and partly in section on the line 7-7 of Figure 6;

Figure 8 is an exploded view, corresponding to the assembled view in Figure 4 and with parts broken away to show the structure; and

Figures 9 and l0 are detail sections on the respective lines 9-9 and 10*10 of Figure 8.

The frame 1 shown fragmentarily in Fig. l carries a number of ink drums 2, 3 and 4, indicated in phantom, for distributing ink evenly and carrying it up to a printing or plate cylinder 5. The arrangements supplying ink to the drum 2 and cooperating with the plate cylinder 5 may be of any desired form and form no part of the present invention.

A succession of ink rollers numbered 7 to 12 cooperate with the cylinders numbered 2, 3 and 4, to transfer ink from the cylinder 2 to printing plates carried on the cylinder 5. The mountings 13 for the ink rollers 7, 9 and 11 may be identical, and the mountings 14 for the rollers 8, and 12 are the same except for being of opposite hand.

In the mechanism chosen for illustration, the rollers are carried on shafts 20 by means of anti-friction bearings 21 (Fig. 2) so that the shafts 20 may be held directly in the mounting means 13 and 14. However, the shafts 20 may equally well be fixed to the rollers and rotate in bearings carried in the mounting means 13, 14, involving only suitable changes in dimensions.

The mounting 13 includes a pair of jaws 30, 31, (Figs. 2 and 3) forming a socket for holding the roller shaft 20. The jaw 30 is swingable on a hinge pin 32 for opening to permit removal and replacement of a roller. A bolt 33 is carried on a pivot pin 34 and passes through the slotted upper end of jaw 3l). A wing nut 35 on the bolt 33 permits swinging the bolt 33 upward and allowing the jaw 30 to swing downward on the hinge pin 32 in the usual way.

The jaw 31 is formed on a socket member 36 (Figs. 3 and 4) which is held against a fiat surface 37 of a mounting bracket 38 which is secured to the frame 1 of the machine. The socket member 36 is supported on the bracket 38 by a bolt 39 which also passes through a slide 40 on the opposite side or face of the bracket 38. The desired positioning of a roller carried by the socket jaws 30, 31 when mounted as shown in Figure 1, is effected by a straight linear movement of the slide 40 in relation to the bracket 38 for moving the roller in an approximately horizontal plane, and by a swinging movement of the socket member 36 about the bolt 39 for moving the roller vertically. The slide 40 is iitted to slide in a slot 43 in the bracket 38 (Figs. 5 and l0), and the bolt 39 is accommodated in an elongated hole 42 also in the bracket 38 (Figs. 4 and 5).

A nut 45, held preferably by a taper pin 46, is provided at the threaded end of the bolt 39 and the head -47 of the bolt is formed with slanted cam surfaces 48 on two opposite sides (Figs. 4, 8 and 9). A bifurcated wedge slide 50 having correspondingly slanted surfaces lits under the bolt head and may be slid back and forth by an adjusting screw 51. The screw 51 is threadedly engaged in a bore 52 of the bolt head 47 and is coupled to the wedge slide 5t) by a iixed collar 53 and a thrust washer 54. The bolt head 47 and the wedge slide 50 are accommodated in a recess 41 in the frame 1. A spring 55 abuts against a washer 54 carried under the head 56 of the screw 51 and urges the washer 54 toward the collar 53 to prevent lost motion between the screw 51 and the wedge slide 50. Turning the screw 51 in one direction by applying a wrench to its head 56 forces the wedge slide 50 under the bolt head 47, thus pressing the slide 4t) and the socket member 36 against bracket 38 and locking the parts in adjusted position, while turning the screw 51 in the other direction exerts pressure by the fixed collar 53 in the opposite direction for retracting the wedge slide 58 and freeing the parts for adjustment.

The linear movement of the slide 40 is guided by the walls of a groove 60 in the bracket 38 (Figs. 5 and 10) and is controlled by a screw 61 threadedly engaged in a bore 62 in the slide 40 (Fig. 8). A fixed collar 63 on the screw 61 and a screw head 64 position the screw with reference to a pivot pin 65 carried in a bore 66 on the bracket 38, the Unthreaded shank of the screw passing through the pivot pin head as indicated in Fig. 5.

Swinging adjustment of the socket member 36 relative to the slide 40 is accomplished by means of a screw 70, passing through a bore in the head of the hinge pin 32 and held in position lengthwise by a head 71 and a iixed collar 72. The threaded end of the screw engages in a threaded bore 75 in a poppet 76 rotatably mounted in the slide 40 and retained in position by a cotter 77.

Brackets 38 are each fixed to the frame 1 by means of bolts 8i) passing through bolt holes 81 in the bracket and screw threaded into the frame 1. A handle 82 on each jaw 38 facilitates opening and closing the jaw, and a spring 33 secured to the socket member 36 serves to hold the bolt 33 raised when the jaw 30 is open.

During assembly of the parts 36, 38, 46 and 50, which are held together by the bolt 39, the nut 45 is tightened so as to leave only the minimum freedom that will permit the sliding and swinging movement between the parts 36, 38 and 48 that is necessary for adjusting the position of the socket. The nut 45 and the bolt 39 are then drilled and reamed, and the taper pin 46 driven in. When the assembled socket is mounted on the press frame by securing part 38 in position, an inking roller placed in the socket may be properly positioned by manipulation of the screws 61 and 78. After the proper adjustment is made the parts are all locked in position by manipulation of the screw 51 to drive the forked wedge member 50 into position to rigidly lock all of the parts together. Loosening the screw 51 unlocks the parts for readjustment, but they are still prevented from moving except by manipulation of the screws 61 or 70, thus providing a nicety of adjustment.

Where the inking roller cooperates with ink drums of equal diameters variation in the inking roller diameter will require displacement of the roller axis along a straight line at right angles to a line joining the ink drum axes. The bracket 38 will be fastened to the frame to position the center of the socket jaws 30-31 midway between the ink drums and to position the slide 40 for movement at right angles to a line joining the ink drum axes. The major adjustment will then be the adjustment of slide 40 but the pivotal adjustment of socket member 36 around the bolt 39 permits taking care of minor variations in the mounting of the bracket 38 and also permits obtaining precisely the desired spacing of the inking roller from the ink drums.

When the cooperating ink drums are of different diameters variation in inking roller diameter will require displacement of the roller axis along a hyperbolic curve. In this case the bracket 38 may be mounted to move the socket 30-31 in the general direction of this curve as the slide 40 is moved, and the pivotal adjustment permits correcting the rectilinear sliding movement by the small amount necessary.

What is claimed is:

1. In a printing machine, an inking roller mounting comprising a bracket secured in position, a slidable member carried by the bracket, a roller supporting socket, a member carried by the said slidable member and pivotally supporting the socket on the slidable member and screws for adjusting the position of the slidable member with relation to the bracket and the pivotal position of the socket with reference to the slidable member.

2. In a printing machine, an inking roller mounting comprising a bracket, a slidable member carried by the bracket, a member having a roller supporting socket and means pivotally mounting the second said member on the slidable member for movement therewith, and releasable means acting on the second said member and the bracket for pressing the bracket and the said members together for locking the parts in position.

3. In a printing machine, an inking roller mounting comprising a bracket, a slidable member carried by the bracket, a roller socket member means pivotally attaching the roller socket member to the slidable member for movement therewith, releasable means acting on the roller socket member and the bracket for pressing the bracket and said members together for locking the parts in position, and screws for adjusting the position of the slidable member with reference to the bracket and the pivotal position of the roller socket member with reference to the slidable member.

4. In a printing machine, an inking roller mounting comprising a bracket, a slidable member carried by the bracket, a roller socket member, a bolt passing through the bracket and pivotally attaching the second said member to the said slidable member for movement therewith, and releasable means for tensioning the bolt to press the two members and the bracket together for locking the parts in position.

5. In a printing machine, an inking roller mounting comprising a bracket, a slidable member carried by the bracket, a roller socket member, a bolt passing through the bracket and pivotally attaching the second said member to the said slidable member for movement therewith, and wedge means for tensioning the bolt to press the two members and the bracket together for locking the parts in position.

6. In a printing machine, an inking roller mounting comprising a bracket, a slidable member carried by the bracket, a roller socket member, a bolt passing through the bracket and pivotally attaching the second said member to the said slidable member for movement therewith, a wedge slidable transversely of the bolt, cooperating wedge surfaces formed on the bolt, and screw adjustable spring means connected to the bolt for forcing the wedge under the said surfaces to tension the bolt and lock the parts together.

7. In a printing machine, an inking roller mounting comprising a bracket, a slidable member carried by the bracket, a roller socket member, means attaching the second said member to the said slidable member for arcuate movement relative thereto, a screw acting between the slidable member and the bracket for positioning the slidable member relative to the bracket, a screw acting between the slidable member and the second said member for positioning the second said member relative to the slidable member, and means acting on the roller socket member and the bracket for pressing the two said members and the bracket together for locking the members in adjusted position.

References Cited in the tile of this patent UNITED STATES PATENTS 1,658,588 Bechman Feb. 7, 1928 1,974,987 Ginsberg Sept. 25, 1934 FOREIGN PATENTS 122,596 Great Britain Jan. 30, 1919 173,295 Great Britain Dec. 22, 1921 

